Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The length of the projection of the line segment joining the points (5, – 1, 4) and (4,–1,3) on the plane , x + y + z = 7 is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
A (5, –1, 4)
B (4,–1,3)
AB = 
Direction ratio of AB < 1,0,1>
Angle between line AB and plane is θ ⇒ sin θ = 
⇒ cos θ = 
Projection of AB on plane = AB cos θ = 
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